NEC M350xs Projector Users Manual

121
7. Maintenance
2.	 Remove	the	lamp	housing.
(1)	Loosen	the	two	 screws	 securing	 the	lamp	 housing	 until	the	phillips	 screwdriver	 goes	into	a	freewheeling	 condi-
tion.
	 •	 The	two	screws	are	not	removable.
	 •		There	 is	an	 interlock	 on	this	 case	 to	prevent	 the	risk	 of	electrical	 shock.	Do	 not	 attempt	 to	circumvent	 this	
interlock.
(2)	Remove	the	lamp	housing	by	holding	it.
Interlock
To replace the lamp: 
1.	 Remove	the	lamp	cover.
(1)	Loosen	the	lamp	cover	screw
	 •	The	lamp	cover...

122
7. Maintenance
This completes the lamp replacement.
Go	on	to	the	filter	replacement.
NOTE:	When	you	continue	 to	use	 the	projector	 for	another	 100	hours	 after	the	lamp	 has	reached	 the	end	 of	its	 life,	 the	projector	
cannot	turn	on	and	the	menu	is	not	displayed.
If	this	happens,	press	the	HELP	button	on	the	remote	control	for	10	seconds	to	reset	the	lamp	clock	back	to	zero.
When	the	lamp	time	clock	is	reset	to	zero,	the	LAMP	indicator	goes	out.
 
4.	 Reattach	the	lamp	cover.
(1)	Slide	the...

123
7. Maintenance
To	replace	the	filters:
Filter	removal	procedure	is	different	depending	on	the	model.	Follow	the	procedure	suitable	for	your	model.
Four	filters	are	packaged	with	the	replacement	lamp.
Honeycomb	filter	(coarse	mesh):	Large	and	small	sizes	(attached	to	the	filter	unit)
Accordion	filter	(fine	mesh):	Large	and	small	sizes	(attached	to	the	filter	cover)
NOTE: 
•	 Replace	all	four	filters	at	the	same	time.
•	 Before	replacing	the	filters,	wipe	off	dust	and	dirt	from	the	projector	cabinet....

124
7. Maintenance
3.	 Replace	the	four	(4)	filters
1. Remove the filter, and then clean the filter unit and the filter cover.
2.  Attach new filters.
  Filter unit: Attach two honeycomb filters (coarse mesh) to the filter unit.
 Filter cover: Attach two accordion filters (fine mesh) to the filter cover.
 The accordion filter has slits on it. Align these slits with the protrusions of the filter cover.
   
4.	 Attach	the	filter	cover	back	to	the	filter	unit
 Align the filter unit with the filter cover and...

125
7. Maintenance
For	standard	and	short-throw	models
[M420X/M420XV/M350XS/M300XS/M260XS/M300WS/M260WS]
1.	 Push	up	the	buttons	on	the	left	and	right	to	release	the	filter	unit	and	pull	it	out.
2.	 Remove	the	filter	unit	by	pulling	out	the	tab.
3.	 Remove	the	four	filters.
(1) Turn the filter unit over and pull out the two soft accordion filters (large and small).
(2) Push the left end of each filter and remove the hard two honeycomb filters (large and small).
	 •	 The	large	filter	cannot	be	removed	by...

126
7. Maintenance
4.	 Remove	dust	from	the	filter	unit	and	the	filter	cover.
 Clean both outside and inside.
5.	 Attach	four	new	filters	to	the	filter	unit.
(1) Insert  the  left  end  of  each  hard  honeycomb  filter  (large  and  small)  first  and  then  the  right  end  of  each  hard 
honeycomb filter to the filter unit.
	 •		 The	large	filter	cannot	be	installed	if	its	right	end	is	inserted	first.
(2) Turn the filter unit over.
	 •		 Attach	 the	two	 soft	 accordion	 filters	(large	 and	small)....

127
8. Appendix
1 Troubleshooting
This	section	helps	you	resolve	problems	you	may	encounter	while	setting	up	or	using	the	projector.
Indicator Messages
Power Indicator
Indicator ConditionProjector	ConditionNote
Off The main power is off –
Blinking light Blue
0�5 sec On,0�5 sec OffThe projector is getting ready to turn on�Wait for a moment�
2�5 sec On,0�5 sec OffOff Timer is enabled� –
Steady lightBlueThe projector is turned on�–
Orange [NORMAL] is selected for [STANDBY MODE] –
Red [POWER-SAVING]  is...

128
8. Appendix
Common Problems & Solutions
(→	“Power/Status/Lamp	Indicator” 	on	page	127.)
ProblemCheck	These	Items
Does not turn on
or shut down•	 Check	 that	the	power	 cord	is	plugged	 in	and	 that	 the	power	 button	 on	the	 projector	 cabinet	or	the	 remote	 control	is on� (→ pages 15, 16)•	 Ensure	that	the	lamp	cover	is	installed	correctly.	(→ page 122)•	 Check	 to	see	 if	the	 projector	 has	overheated.	 If	there	 is	insufficient	 ventilation	around	the	projector	 or	if	the	 room	where you are...

129
8. Appendix
If there is no picture, or the picture is not displayed correctly.
•	 Power	on	process	for	the	projector	and	the	PC.
	 Be	sure	to	connect	 the	projector	 and	notebook	 PC	while	 the	projector	 is	in	 standby	 mode	and	before	 turning	 on	
the	power	to	the	notebook	PC.
	 In	most	cases	 the	output	 signal	from	the	notebook	 PC	is	not	 turned	 on	unless	 connected	 to	the	 projector	 before	
being	powered	up.
NOTE:	You	can	check	 the	horizontal	 frequency	of	the	 current	 signal	in	the...

130
8. Appendix
 Specifications
This	section	provides	technical	information	about	projector’s	performance.
Model	Number	 M350X/M300X/M260X/M230X/M300W/M260W
Optical
M350XM300XM260XM230XM300W M260W
LCD	Panel0.63	inch	LCD	with	Micro	Lens	Array	(Aspect	Ratio	4:3)0.63	inch	LCD	(Aspect	Ratio	4:3)0.59	inch	LCD	with	Micro	Lens	Array	(Aspect	Ratio	16:10)
Resolution*11024	×	768	pixels	(XGA)1280	×	800	pixels	(WXGA)
LensManual	zoom	and	focus
Zoom	Ratio	=	1.7F1.7–2.1	f	=	17.5–29.0	mm
Lamp230	W	AC	(170	 W	in...